1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.os;
18
19import android.util.Log;
20
21/**
22 * Vibrator implementation that controls the main system vibrator.
23 *
24 * @hide
25 */
26public class SystemVibrator extends Vibrator {
27    private static final String TAG = "Vibrator";
28
29    private final IVibratorService mService;
30    private final Binder mToken = new Binder();
31
32    public SystemVibrator() {
33        mService = IVibratorService.Stub.asInterface(
34                ServiceManager.getService("vibrator"));
35    }
36
37    @Override
38    public boolean hasVibrator() {
39        if (mService == null) {
40            Log.w(TAG, "Failed to vibrate; no vibrator service.");
41            return false;
42        }
43        try {
44            return mService.hasVibrator();
45        } catch (RemoteException e) {
46        }
47        return false;
48    }
49
50    @Override
51    public void vibrate(long milliseconds) {
52        if (mService == null) {
53            Log.w(TAG, "Failed to vibrate; no vibrator service.");
54            return;
55        }
56        try {
57            mService.vibrate(milliseconds, mToken);
58        } catch (RemoteException e) {
59            Log.w(TAG, "Failed to vibrate.", e);
60        }
61    }
62
63    @Override
64    public void vibrate(long[] pattern, int repeat) {
65        if (mService == null) {
66            Log.w(TAG, "Failed to vibrate; no vibrator service.");
67            return;
68        }
69        // catch this here because the server will do nothing.  pattern may
70        // not be null, let that be checked, because the server will drop it
71        // anyway
72        if (repeat < pattern.length) {
73            try {
74                mService.vibratePattern(pattern, repeat, mToken);
75            } catch (RemoteException e) {
76                Log.w(TAG, "Failed to vibrate.", e);
77            }
78        } else {
79            throw new ArrayIndexOutOfBoundsException();
80        }
81    }
82
83    @Override
84    public void cancel() {
85        if (mService == null) {
86            return;
87        }
88        try {
89            mService.cancelVibrate(mToken);
90        } catch (RemoteException e) {
91            Log.w(TAG, "Failed to cancel vibration.", e);
92        }
93    }
94}
95